Show production of immunity against cholera of hogs age Is nut not a factor in the prodie tafou of immunity against hog cholera clio leru tile the bureau of industry united states department of agriculture an bounces after studies of the effects ot of immunization of suckling buckling pigs the T n experiments covered a period of if more than six years both with spring and fall furrowed agil at untied united stute states government farms bated lou ted in Sl Issis Loul stana south dakota Dilk sta mon lon tuna tana and Nf aryland gwm purebred pure bred bloland chenu duroc chester Cl iester white hampshire berkshire berk lure yorkshire and Tain worth pigs its as well as crosses and ariu ei of these breeds breads and n n d alney wood rooters were ft ere used in the expert experiments ments in the experiments conducted 11 piss s one day old were immunized as sue cess fully as pigs of other ages ranging up ill tn twelve ehe weeks all breeds responded like alike and results were essentially tile the same saine on all tile the various farms the rhe who planned and conducted the lie work nr dr al dorset chlea of the bureaus blo chernic division alv ision K H 7 russell lin final tn in charge of it swine ions tind and dr S S Assor assortate late chimal nril nial husban dinan anti and v |